Home » Archimedes archive » Acorn User » AU 1996-06.adf » Regulars » StarInfo/Jerome/Marriott/StripSrc
StarInfo/Jerome/Marriott/StripSrc
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Archimedes archive » Acorn User » AU 1996-06.adf » Regulars |
| Filename: | StarInfo/Jerome/Marriott/StripSrc |
| Read OK: | ✔ |
| File size: | 09FA bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
; Strip
;
; Strip control codes/top bit set chars from files
;
; Arguments - <input file> <output file> [-ctrl] [-top]
;
;
#name Strip
.Code_Start
bl Initialise
blvc Strip
swi XOS_Exit
.Initialise
adr r12,Code_End
adr r0,Message_Copyright
swi XOS_Write0
swi XOS_NewLine
swi XOS_GetEnv
mov r11,r0
cmp r1,#(32*1024)
adrlt r0,Error_LackOfMem
swilt XOS_Write0
orrlts r15,r14,#1<<28
.Find_Space
ldrb r0,[r11],#1
cmp r0,#0
adreq r0,Error_BadParams
swieq XOS_Write0
orreqs r15,r14,#1<<28
cmp r0,#32
bne Find_Space
adr r0,Arguments
mov r1,r11
mov r2,r12
mov r3,#512
swi XOS_ReadArgs
addvs r0,r0,#4
swivs XOS_Write0
orrvss r15,r14,#1<<28
mov r15,r14
.Arguments
dcb "/a,/a,ctrl/s,top/s",0
align
.Message_Copyright
dcb "Strip � Nicholas Marriott 1995",0
align
.Error_LackOfMem
dcb "Strip: Not enough memory",0
align
.Error_BadParams
dcb "Strip: Bad parameters",0
align
.Strip
ldr r10,[r12,#0]
ldr r11,[r12,#4]
ldr r8,[r12,#8]
ldr r9,[r12,#12]
mov r0,#&4F
mov r1,r10
swi XOS_Find
mov r10,r0
addvs r0,r0,#4
swivs XOS_Write0
orrvss r15,r14,#1<<28
mov r0,#&8F
mov r1,r11
swi XOS_Find
mov r11,r0
addvs r0,r0,#4
swivs XOS_Write0
orrvss r15,r14,#1<<28
.Strip_Loop
mov r0,#0
mov r1,r10
swi XOS_BGet
mov r7,r0
.Strip_Loop_Check_Ctrl
cmp r8,#0
beq Strip_Loop_Check_Top
cmp r7,#32
blt Strip_Loop_Next
.Strip_Loop_Check_Top
cmp r9,#0
beq Strip_Loop_Write
cmp r7,#127
bgt Strip_Loop_Next
.Strip_Loop_Write
mov r0,r7
mov r1,r11
swi XOS_BPut
.Strip_Loop_Next
mov r0,#5
mov r1,r10
swi XOS_Args
cmp r2,#0
beq Strip_Loop
mov r0,#&00
mov r1,r10
swi XOS_Find
mov r0,#&00
mov r1,r11
swi XOS_Find
mov r15,r14
.Code_End
00000000 3b 20 53 74 72 69 70 0a 3b 0a 3b 20 53 74 72 69 |; Strip.;.; Stri| 00000010 70 20 63 6f 6e 74 72 6f 6c 20 63 6f 64 65 73 2f |p control codes/| 00000020 74 6f 70 20 62 69 74 20 73 65 74 20 63 68 61 72 |top bit set char| 00000030 73 20 66 72 6f 6d 20 66 69 6c 65 73 0a 3b 0a 3b |s from files.;.;| 00000040 20 41 72 67 75 6d 65 6e 74 73 20 2d 20 3c 69 6e | Arguments - <in| 00000050 70 75 74 20 66 69 6c 65 3e 20 3c 6f 75 74 70 75 |put file> <outpu| 00000060 74 20 66 69 6c 65 3e 20 5b 2d 63 74 72 6c 5d 20 |t file> [-ctrl] | 00000070 5b 2d 74 6f 70 5d 0a 3b 0a 3b 0a 20 20 20 20 20 |[-top].;.;. | 00000080 20 20 20 23 6e 61 6d 65 20 20 20 53 74 72 69 70 | #name Strip| 00000090 0a 0a 2e 43 6f 64 65 5f 53 74 61 72 74 0a 20 20 |...Code_Start. | 000000a0 20 20 20 20 20 20 62 6c 20 20 20 20 20 20 49 6e | bl In| 000000b0 69 74 69 61 6c 69 73 65 0a 20 20 20 20 20 20 20 |itialise. | 000000c0 20 62 6c 76 63 20 20 20 20 53 74 72 69 70 0a 20 | blvc Strip. | 000000d0 20 20 20 20 20 20 20 73 77 69 20 20 20 20 20 58 | swi X| 000000e0 4f 53 5f 45 78 69 74 0a 0a 2e 49 6e 69 74 69 61 |OS_Exit...Initia| 000000f0 6c 69 73 65 0a 20 20 20 20 20 20 20 20 61 64 72 |lise. adr| 00000100 20 20 20 20 20 72 31 32 2c 43 6f 64 65 5f 45 6e | r12,Code_En| 00000110 64 0a 0a 20 20 20 20 20 20 20 20 61 64 72 20 20 |d.. adr | 00000120 20 20 20 72 30 2c 4d 65 73 73 61 67 65 5f 43 6f | r0,Message_Co| 00000130 70 79 72 69 67 68 74 0a 20 20 20 20 20 20 20 20 |pyright. | 00000140 73 77 69 20 20 20 20 20 58 4f 53 5f 57 72 69 74 |swi XOS_Writ| 00000150 65 30 0a 20 20 20 20 20 20 20 20 73 77 69 20 20 |e0. swi | 00000160 20 20 20 58 4f 53 5f 4e 65 77 4c 69 6e 65 0a 0a | XOS_NewLine..| 00000170 20 20 20 20 20 20 20 20 73 77 69 20 20 20 20 20 | swi | 00000180 58 4f 53 5f 47 65 74 45 6e 76 0a 20 20 20 20 20 |XOS_GetEnv. | 00000190 20 20 20 6d 6f 76 20 20 20 20 20 72 31 31 2c 72 | mov r11,r| 000001a0 30 0a 20 20 20 20 20 20 20 20 63 6d 70 20 20 20 |0. cmp | 000001b0 20 20 72 31 2c 23 28 33 32 2a 31 30 32 34 29 0a | r1,#(32*1024).| 000001c0 20 20 20 20 20 20 20 20 61 64 72 6c 74 20 20 20 | adrlt | 000001d0 72 30 2c 45 72 72 6f 72 5f 4c 61 63 6b 4f 66 4d |r0,Error_LackOfM| 000001e0 65 6d 0a 20 20 20 20 20 20 20 20 73 77 69 6c 74 |em. swilt| 000001f0 20 20 20 58 4f 53 5f 57 72 69 74 65 30 0a 20 20 | XOS_Write0. | 00000200 20 20 20 20 20 20 6f 72 72 6c 74 73 20 20 72 31 | orrlts r1| 00000210 35 2c 72 31 34 2c 23 31 3c 3c 32 38 0a 0a 2e 46 |5,r14,#1<<28...F| 00000220 69 6e 64 5f 53 70 61 63 65 0a 20 20 20 20 20 20 |ind_Space. | 00000230 20 20 6c 64 72 62 20 20 20 20 72 30 2c 5b 72 31 | ldrb r0,[r1| 00000240 31 5d 2c 23 31 0a 20 20 20 20 20 20 20 20 63 6d |1],#1. cm| 00000250 70 20 20 20 20 20 72 30 2c 23 30 0a 20 20 20 20 |p r0,#0. | 00000260 20 20 20 20 61 64 72 65 71 20 20 20 72 30 2c 45 | adreq r0,E| 00000270 72 72 6f 72 5f 42 61 64 50 61 72 61 6d 73 0a 20 |rror_BadParams. | 00000280 20 20 20 20 20 20 20 73 77 69 65 71 20 20 20 58 | swieq X| 00000290 4f 53 5f 57 72 69 74 65 30 0a 20 20 20 20 20 20 |OS_Write0. | 000002a0 20 20 6f 72 72 65 71 73 20 20 72 31 35 2c 72 31 | orreqs r15,r1| 000002b0 34 2c 23 31 3c 3c 32 38 0a 20 20 20 20 20 20 20 |4,#1<<28. | 000002c0 20 63 6d 70 20 20 20 20 20 72 30 2c 23 33 32 0a | cmp r0,#32.| 000002d0 20 20 20 20 20 20 20 20 62 6e 65 20 20 20 20 20 | bne | 000002e0 46 69 6e 64 5f 53 70 61 63 65 0a 0a 20 20 20 20 |Find_Space.. | 000002f0 20 20 20 20 61 64 72 20 20 20 20 20 72 30 2c 41 | adr r0,A| 00000300 72 67 75 6d 65 6e 74 73 0a 20 20 20 20 20 20 20 |rguments. | 00000310 20 6d 6f 76 20 20 20 20 20 72 31 2c 72 31 31 0a | mov r1,r11.| 00000320 20 20 20 20 20 20 20 20 6d 6f 76 20 20 20 20 20 | mov | 00000330 72 32 2c 72 31 32 0a 20 20 20 20 20 20 20 20 6d |r2,r12. m| 00000340 6f 76 20 20 20 20 20 72 33 2c 23 35 31 32 0a 20 |ov r3,#512. | 00000350 20 20 20 20 20 20 20 73 77 69 20 20 20 20 20 58 | swi X| 00000360 4f 53 5f 52 65 61 64 41 72 67 73 0a 20 20 20 20 |OS_ReadArgs. | 00000370 20 20 20 20 61 64 64 76 73 20 20 20 72 30 2c 72 | addvs r0,r| 00000380 30 2c 23 34 0a 20 20 20 20 20 20 20 20 73 77 69 |0,#4. swi| 00000390 76 73 20 20 20 58 4f 53 5f 57 72 69 74 65 30 0a |vs XOS_Write0.| 000003a0 20 20 20 20 20 20 20 20 6f 72 72 76 73 73 20 20 | orrvss | 000003b0 72 31 35 2c 72 31 34 2c 23 31 3c 3c 32 38 0a 0a |r15,r14,#1<<28..| 000003c0 20 20 20 20 20 20 20 20 6d 6f 76 20 20 20 20 20 | mov | 000003d0 72 31 35 2c 72 31 34 0a 0a 2e 41 72 67 75 6d 65 |r15,r14...Argume| 000003e0 6e 74 73 0a 20 20 20 20 20 20 20 20 64 63 62 20 |nts. dcb | 000003f0 20 20 20 20 22 2f 61 2c 2f 61 2c 63 74 72 6c 2f | "/a,/a,ctrl/| 00000400 73 2c 74 6f 70 2f 73 22 2c 30 0a 20 20 20 20 20 |s,top/s",0. | 00000410 20 20 20 61 6c 69 67 6e 0a 0a 2e 4d 65 73 73 61 | align...Messa| 00000420 67 65 5f 43 6f 70 79 72 69 67 68 74 0a 20 20 20 |ge_Copyright. | 00000430 20 20 20 20 20 64 63 62 20 20 20 20 20 22 53 74 | dcb "St| 00000440 72 69 70 20 a9 20 4e 69 63 68 6f 6c 61 73 20 4d |rip . Nicholas M| 00000450 61 72 72 69 6f 74 74 20 31 39 39 35 22 2c 30 0a |arriott 1995",0.| 00000460 20 20 20 20 20 20 20 20 61 6c 69 67 6e 0a 0a 2e | align...| 00000470 45 72 72 6f 72 5f 4c 61 63 6b 4f 66 4d 65 6d 0a |Error_LackOfMem.| 00000480 20 20 20 20 20 20 20 20 64 63 62 20 20 20 20 20 | dcb | 00000490 22 53 74 72 69 70 3a 20 4e 6f 74 20 65 6e 6f 75 |"Strip: Not enou| 000004a0 67 68 20 6d 65 6d 6f 72 79 22 2c 30 0a 20 20 20 |gh memory",0. | 000004b0 20 20 20 20 20 61 6c 69 67 6e 0a 0a 2e 45 72 72 | align...Err| 000004c0 6f 72 5f 42 61 64 50 61 72 61 6d 73 0a 20 20 20 |or_BadParams. | 000004d0 20 20 20 20 20 64 63 62 20 20 20 20 20 22 53 74 | dcb "St| 000004e0 72 69 70 3a 20 42 61 64 20 70 61 72 61 6d 65 74 |rip: Bad paramet| 000004f0 65 72 73 22 2c 30 0a 20 20 20 20 20 20 20 20 61 |ers",0. a| 00000500 6c 69 67 6e 0a 0a 2e 53 74 72 69 70 0a 20 20 20 |lign...Strip. | 00000510 20 20 20 20 20 6c 64 72 20 20 20 20 20 72 31 30 | ldr r10| 00000520 2c 5b 72 31 32 2c 23 30 5d 0a 20 20 20 20 20 20 |,[r12,#0]. | 00000530 20 20 6c 64 72 20 20 20 20 20 72 31 31 2c 5b 72 | ldr r11,[r| 00000540 31 32 2c 23 34 5d 0a 20 20 20 20 20 20 20 20 6c |12,#4]. l| 00000550 64 72 20 20 20 20 20 72 38 2c 5b 72 31 32 2c 23 |dr r8,[r12,#| 00000560 38 5d 0a 20 20 20 20 20 20 20 20 6c 64 72 20 20 |8]. ldr | 00000570 20 20 20 72 39 2c 5b 72 31 32 2c 23 31 32 5d 0a | r9,[r12,#12].| 00000580 0a 20 20 20 20 20 20 20 20 6d 6f 76 20 20 20 20 |. mov | 00000590 20 72 30 2c 23 26 34 46 0a 20 20 20 20 20 20 20 | r0,#&4F. | 000005a0 20 6d 6f 76 20 20 20 20 20 72 31 2c 72 31 30 0a | mov r1,r10.| 000005b0 20 20 20 20 20 20 20 20 73 77 69 20 20 20 20 20 | swi | 000005c0 58 4f 53 5f 46 69 6e 64 0a 20 20 20 20 20 20 20 |XOS_Find. | 000005d0 20 6d 6f 76 20 20 20 20 20 72 31 30 2c 72 30 0a | mov r10,r0.| 000005e0 20 20 20 20 20 20 20 20 61 64 64 76 73 20 20 20 | addvs | 000005f0 72 30 2c 72 30 2c 23 34 0a 20 20 20 20 20 20 20 |r0,r0,#4. | 00000600 20 73 77 69 76 73 20 20 20 58 4f 53 5f 57 72 69 | swivs XOS_Wri| 00000610 74 65 30 0a 20 20 20 20 20 20 20 20 6f 72 72 76 |te0. orrv| 00000620 73 73 20 20 72 31 35 2c 72 31 34 2c 23 31 3c 3c |ss r15,r14,#1<<| 00000630 32 38 0a 0a 20 20 20 20 20 20 20 20 6d 6f 76 20 |28.. mov | 00000640 20 20 20 20 72 30 2c 23 26 38 46 0a 20 20 20 20 | r0,#&8F. | 00000650 20 20 20 20 6d 6f 76 20 20 20 20 20 72 31 2c 72 | mov r1,r| 00000660 31 31 0a 20 20 20 20 20 20 20 20 73 77 69 20 20 |11. swi | 00000670 20 20 20 58 4f 53 5f 46 69 6e 64 0a 20 20 20 20 | XOS_Find. | 00000680 20 20 20 20 6d 6f 76 20 20 20 20 20 72 31 31 2c | mov r11,| 00000690 72 30 0a 20 20 20 20 20 20 20 20 61 64 64 76 73 |r0. addvs| 000006a0 20 20 20 72 30 2c 72 30 2c 23 34 0a 20 20 20 20 | r0,r0,#4. | 000006b0 20 20 20 20 73 77 69 76 73 20 20 20 58 4f 53 5f | swivs XOS_| 000006c0 57 72 69 74 65 30 0a 20 20 20 20 20 20 20 20 6f |Write0. o| 000006d0 72 72 76 73 73 20 20 72 31 35 2c 72 31 34 2c 23 |rrvss r15,r14,#| 000006e0 31 3c 3c 32 38 0a 0a 2e 53 74 72 69 70 5f 4c 6f |1<<28...Strip_Lo| 000006f0 6f 70 0a 20 20 20 20 20 20 20 20 6d 6f 76 20 20 |op. mov | 00000700 20 20 20 72 30 2c 23 30 0a 20 20 20 20 20 20 20 | r0,#0. | 00000710 20 6d 6f 76 20 20 20 20 20 72 31 2c 72 31 30 0a | mov r1,r10.| 00000720 20 20 20 20 20 20 20 20 73 77 69 20 20 20 20 20 | swi | 00000730 58 4f 53 5f 42 47 65 74 0a 0a 20 20 20 20 20 20 |XOS_BGet.. | 00000740 20 20 6d 6f 76 20 20 20 20 20 72 37 2c 72 30 0a | mov r7,r0.| 00000750 0a 2e 53 74 72 69 70 5f 4c 6f 6f 70 5f 43 68 65 |..Strip_Loop_Che| 00000760 63 6b 5f 43 74 72 6c 0a 20 20 20 20 20 20 20 20 |ck_Ctrl. | 00000770 63 6d 70 20 20 20 20 20 72 38 2c 23 30 0a 20 20 |cmp r8,#0. | 00000780 20 20 20 20 20 20 62 65 71 20 20 20 20 20 53 74 | beq St| 00000790 72 69 70 5f 4c 6f 6f 70 5f 43 68 65 63 6b 5f 54 |rip_Loop_Check_T| 000007a0 6f 70 0a 0a 20 20 20 20 20 20 20 20 63 6d 70 20 |op.. cmp | 000007b0 20 20 20 20 72 37 2c 23 33 32 0a 20 20 20 20 20 | r7,#32. | 000007c0 20 20 20 62 6c 74 20 20 20 20 20 53 74 72 69 70 | blt Strip| 000007d0 5f 4c 6f 6f 70 5f 4e 65 78 74 0a 0a 2e 53 74 72 |_Loop_Next...Str| 000007e0 69 70 5f 4c 6f 6f 70 5f 43 68 65 63 6b 5f 54 6f |ip_Loop_Check_To| 000007f0 70 0a 20 20 20 20 20 20 20 20 63 6d 70 20 20 20 |p. cmp | 00000800 20 20 72 39 2c 23 30 0a 20 20 20 20 20 20 20 20 | r9,#0. | 00000810 62 65 71 20 20 20 20 20 53 74 72 69 70 5f 4c 6f |beq Strip_Lo| 00000820 6f 70 5f 57 72 69 74 65 0a 0a 20 20 20 20 20 20 |op_Write.. | 00000830 20 20 63 6d 70 20 20 20 20 20 72 37 2c 23 31 32 | cmp r7,#12| 00000840 37 0a 20 20 20 20 20 20 20 20 62 67 74 20 20 20 |7. bgt | 00000850 20 20 53 74 72 69 70 5f 4c 6f 6f 70 5f 4e 65 78 | Strip_Loop_Nex| 00000860 74 0a 0a 2e 53 74 72 69 70 5f 4c 6f 6f 70 5f 57 |t...Strip_Loop_W| 00000870 72 69 74 65 0a 20 20 20 20 20 20 20 20 6d 6f 76 |rite. mov| 00000880 20 20 20 20 20 72 30 2c 72 37 0a 20 20 20 20 20 | r0,r7. | 00000890 20 20 20 6d 6f 76 20 20 20 20 20 72 31 2c 72 31 | mov r1,r1| 000008a0 31 0a 20 20 20 20 20 20 20 20 73 77 69 20 20 20 |1. swi | 000008b0 20 20 58 4f 53 5f 42 50 75 74 0a 0a 2e 53 74 72 | XOS_BPut...Str| 000008c0 69 70 5f 4c 6f 6f 70 5f 4e 65 78 74 0a 20 20 20 |ip_Loop_Next. | 000008d0 20 20 20 20 20 6d 6f 76 20 20 20 20 20 72 30 2c | mov r0,| 000008e0 23 35 0a 20 20 20 20 20 20 20 20 6d 6f 76 20 20 |#5. mov | 000008f0 20 20 20 72 31 2c 72 31 30 0a 20 20 20 20 20 20 | r1,r10. | 00000900 20 20 73 77 69 20 20 20 20 20 58 4f 53 5f 41 72 | swi XOS_Ar| 00000910 67 73 0a 20 20 20 20 20 20 20 20 63 6d 70 20 20 |gs. cmp | 00000920 20 20 20 72 32 2c 23 30 0a 20 20 20 20 20 20 20 | r2,#0. | 00000930 20 62 65 71 20 20 20 20 20 53 74 72 69 70 5f 4c | beq Strip_L| 00000940 6f 6f 70 0a 0a 20 20 20 20 20 20 20 20 6d 6f 76 |oop.. mov| 00000950 20 20 20 20 20 72 30 2c 23 26 30 30 0a 20 20 20 | r0,#&00. | 00000960 20 20 20 20 20 6d 6f 76 20 20 20 20 20 72 31 2c | mov r1,| 00000970 72 31 30 0a 20 20 20 20 20 20 20 20 73 77 69 20 |r10. swi | 00000980 20 20 20 20 58 4f 53 5f 46 69 6e 64 0a 0a 20 20 | XOS_Find.. | 00000990 20 20 20 20 20 20 6d 6f 76 20 20 20 20 20 72 30 | mov r0| 000009a0 2c 23 26 30 30 0a 20 20 20 20 20 20 20 20 6d 6f |,#&00. mo| 000009b0 76 20 20 20 20 20 72 31 2c 72 31 31 0a 20 20 20 |v r1,r11. | 000009c0 20 20 20 20 20 73 77 69 20 20 20 20 20 58 4f 53 | swi XOS| 000009d0 5f 46 69 6e 64 0a 0a 20 20 20 20 20 20 20 20 6d |_Find.. m| 000009e0 6f 76 20 20 20 20 20 72 31 35 2c 72 31 34 0a 0a |ov r15,r14..| 000009f0 2e 43 6f 64 65 5f 45 6e 64 0a |.Code_End.| 000009fa
.